Ovrtete phophoryion acon avot Care O00 50 NAD FAD Multiprotein complexes 40 FMN FAD Fes FeS Cytb Fe-5 Cyt c, Cyrc Cyt a Cyt a, 10 The figure above shows the electron transport chain. Which of the following the combination of substances that is initially added to the chain? a. Oxygen, CO2, and H20 b. NAD*, FAD, and electrons c. NADH, FADH2, and ATP d. NADH, FADH2, and O2 e. Oxygen and protons Free energy (G relative to O, (kcal/mol)

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